Classification of Sharpey's Fibers

1. Severed fibers

1.1. Located within the old bone

1.2. Terminating the reversal line

2. Adhesive fibers

2.1. Entirly located withing the new bone

2.2. Terminating at the reversal line in a granular material

3. Continous fibers

3.1. Appearing to cross reversal lines

3.2. In reality, joining old and new fibrils by nonstraited fibrils

4. Arborized fibers

4.1. Located entirely within the new bone

4.2. Terminating within the matrix of the new bone

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